The Good Ship IPO The seas of the market are constantly shifting. Whether the good ship IPO can set sail may depend heavily on the tides. Share | Related Content The Rule of 72 Do you know how long it may take for your investments to double in value? The Rule of 72 is a quick way to figure it out. Investing with Your Heart For some, the social impact of investing is just as important as the return, perhaps more important. Saving for College This calculator can help you estimate how much you should be saving for college.